Description of problem:

On a rawhide system, I encountered this during a dnf update:

# dnf update
...
 Cleanup     : samba-common-2:4.4.0-0.0.rc1.fc24.noarch                                                                       64/89 
/sbin/ldconfig: relative path `1' used to build cache
warning: %postun(samba-common-2:4.4.0-0.0.rc1.fc24.noarch) scriptlet failed, exit status 1
Non-fatal POSTUN scriptlet failure in rpm package samba-common
Non-fatal POSTUN scriptlet failure in rpm package samba-common


Version-Release number of selected component (if applicable):
samba-common-2:4.4.0-0.0.rc1.fc24.noarch

How reproducible:
Always

Steps to Reproduce:
This issue is reproducible in mock:
1. mock -r fedora-rawhide-x86_64 --install dnf samba-common
2. mock -r fedora-rawhide-x86_64 --shell
3. dnf reinstall samba-common

Actual results:
cf. above

Expected results:
Function, no warning.

Additional info:

Seems to me as if the %postuninstall scriptlet is infected with shell code:

# rpm -q --scripts samba-common
...
postuninstall scriptlet (using /sbin/ldconfig):


### KRB5-PRINTING

I.e. rpm tries to run a script which is containing a /bin/sh-style comment
(### KRB5...) using /sbin/ldconfig as shell-interpreter.